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Finding the Fourth Proportional to 92,933.63, 128,251.20 and 65,758.43

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Solution

The fourth proportional to 92,933.63, 128,251.20 and 65,758.43 is: 90,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,933.63 : 128,251.20 = 65,758.43 : x
  2. Step 2: Convert to fraction form
    92,933.63/128,251.20 = 65,758.43/x
  3. Step 3: Cross multiply
    92,933.63x = 128,251.20 × 65,758.43
  4. Step 4: Simplify right side
    92,933.63x = 8,433,597,754.95
  5. Step 5: Solve for x
    x = 8,433,597,754.95/92,933.63
  6. Step 6: Final answer
    x = 90,748.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.